I have just reviewed my copy of GASCO (not GATCO) and read Mr Skinners article.
Another poster said previously
He believes that by simply announcing certain details correctly ATC should allow immediate and unimpeded transit thru' said airspace!!!
Mr Skinner said "One the one hand, General Aviation pilots cannot expect to always have unfettered access to Class D airspace having given short notice by radio call of a requirement for tranist and in circumstances where it becomes apparent that adequate pre-flight preparation may not have been carried out. On the other hand a response from the air traffic to a properly announced request for transit by a pilot should not be refused on such grounds as "Unit working to capacity"."
I thought that it was reasonable to post this quote to allow readers to make up their own mind.